5-18 Image Optimization
WF (Wall Filter)
It filters out low-velocity signals to provide effective information, and this function is
used to adjust the filtered frequency. The real-time value is displayed in the image
parameter area in the upper right corner of the screen.
Select through the [WF] item on the touch screen.
There are 8 levels of wall filter function available. Select the value according to the
actual situation.
Flow signals may be missing.
Smart Track
To optimize image parameters as per the current tissue characteristics for a better
image effect. The angle and the position of the ROI are adjusted after the function is
enabled. The area is tracked without being affected by the dynamic moves.
Tap [Smart Track] on the touch screen under Color/Power mode. The vessels lay in
the middle of the ROI.
Enable the function under B+Color/Power+PW mode. The PW sampling line, SV
size and SV position are adjusted automatically.
The probe L12-3E/L9-3E/L14-5WE/L14-6NE/L14-6WE for Upper Ext Artery, Upper
Ext Vein, Lower Ext Artery, Lower Ext Vein, carotid, IMT, EM Vascular exam
supports the smart track.
Priority
This function is used to set levels of the flow display, to display the grayscale
signal or color signal.
Rotate the knob under the [Priority] item on the touch screen to select the value.
The adjusting range of the priority is 0-100%.
The higher the value, color signals are prior to be displayed; while the lower the
value, grayscale signals are prior to be displayed.
Velocity tag
This function is used to mark the specified velocity range in flow to check the flow
function or specific flow velocity value.
1. Touch [Velocity Tag] on the touch screen to enter the velocity marking status,
and green mark appears on the color bar.
2. Roll the trackball upwards and downwards to select the marking velocity.
3. Press <Set> to enter the tag range selection status, roll the trackball upwards
and downwards to select the range.
Press <Set> to switch between marking position and marking range.
iTouch (Auto Image Optimization)
To optimize image parameters as per the current tissue characteristics for a better
image effect.
Press <iTouch> on the control panel to turn on the function.
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